PROTGA-RO
Roche
Protein G Agarose
>98% (HPLC and SDS-PAGE), suspension
Synonym(s):
agarose, protein g
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About This Item
UNSPSC Code:
41116133
Recommended Products
Assay
>98% (HPLC and SDS-PAGE)
form
suspension
packaging
pkg of 15 mL (05015952001 [settled resin volume])
pkg of 2 mL (11719416001 [settled resin volume])
pkg of 5 mL (11243233001 [settled resin volume])
manufacturer/tradename
Roche
storage temp.
2-8°C
General description
Protein G was initially isolated from G148, a human group G Streptococcal strain. It is a cell wall protein and shows high affinity to IgG (immunoglobulin G). It has a putative molecular weight of 30,000Da. It interacts with all subclasses of human IgG and also binds to mouse, rabbit and goat IgG.
Specificity
Protein G is a cell wall protein, isolated from a specific bacterial strain, which has specific binding sites for certain classes of immunoglobulins from different species. Protein G binds nearly all subclasses of IgG, but no other classes of immunoglobulins.
Binding capacity: 20mg human IgG (polyclonal)/ml (the IgG is loaded at pH 7.0, and eluted with 200mM glycine, pH 2.8)
Structure: recombinant Protein G (E. coli, Mr = 22,000) is covalently coupled to crosslinked 4% agarose beads: 2.5mg Protein G (>98% pure)/1ml gel.
Binding capacity: 20mg human IgG (polyclonal)/ml (the IgG is loaded at pH 7.0, and eluted with 200mM glycine, pH 2.8)
Structure: recombinant Protein G (E. coli, Mr = 22,000) is covalently coupled to crosslinked 4% agarose beads: 2.5mg Protein G (>98% pure)/1ml gel.
Application
Affinity chromatography using Protein G Agarose, like Protein A Agarose, is the method of choice for purification of IgG from many species. It has been used as a pre-clearing agent during-
- Ubiquitination assay
- Immunoprecipitation
Features and Benefits
Contents
Preswollen gel, ready-to-use, 2ml or 5ml gel (settled gel volume) in buffer that contains 14-19% ethanol as a preservative, nonsterile.
Protein G content: 2.5mg/ml preswollen gel
Preswollen gel, ready-to-use, 2ml or 5ml gel (settled gel volume) in buffer that contains 14-19% ethanol as a preservative, nonsterile.
Protein G content: 2.5mg/ml preswollen gel
Quality
Purity: >98% (HPLC, SDS-PAGE); entirely free from staphylococcal enterotoxins.
Other Notes
For life science research only. Not for use in diagnostic procedures.
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2 - Flam. Liq. 3
Storage Class Code
3 - Flammable liquids
WGK
WGK 1
Flash Point(F)
102.2 °F
Flash Point(C)
39 °C
Certificates of Analysis (COA)
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Protein G, a bacterial cell wall protein with affinity for immunoglobulin G (IgG), has been isolated from a human group G streptococcal strain (G148). Bacterial surface proteins were solubilized by enzymatic digestion with papain. Protein G was isolated by sequential
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